💽 Add site options to each page

.changeset/sour-apes-swim.md

@@ -0,0 +1,6 @@
+---
+"myst-frontmatter": patch
+"myst-cli": patch
+---
+
+Enable site options on each page

docs/website-templates.md

@@ -78,6 +78,19 @@ Below is a table of options for each theme bundled with MyST.
 :heading-depth: 3
 ```
 
+### Page Options
+
+Depending on the option, these can also be controlled in the frontmatter on each page under the `site` key.
+
+```{code-block} yaml
+:filename: my-page.md
+---
+...
+site:
+  hide_toc: true
+---
+```
+
 ## Other top-level site configuration
 
 There are some other top-level site configuration options not documented here.

packages/myst-cli/src/build/html/index.ts

@@ -7,7 +7,7 @@ import type { SiteManifestOptions } from '../site/manifest.js';
 import { getSiteManifest } from '../site/manifest.js';
 import type { StartOptions } from '../site/start.js';
 import { startServer } from '../site/start.js';
-import { getMystTemplate } from '../site/template.js';
+import { getSiteTemplate } from '../site/template.js';
 
 export async function currentSiteRoutes(
   session: ISession,
@@ -125,7 +125,7 @@ function get_baseurl(session: ISession): string | undefined {
  * @param opts configuration options
  */
 export async function buildHtml(session: ISession, opts: StartOptions) {
-  const template = await getMystTemplate(session, opts);
+  const template = await getSiteTemplate(session, opts);
   // The BASE_URL env variable allows for mounting the site in a folder, e.g., github pages
   const baseurl = get_baseurl(session);
   // Note, this process is really only for Remix templates

packages/myst-cli/src/build/site/manifest.ts

@@ -19,7 +19,7 @@ import { selectors } from '../../store/index.js';
 import { transformBanner, transformThumbnail } from '../../transforms/images.js';
 import { addWarningForFile } from '../../utils/addWarningForFile.js';
 import version from '../../version.js';
-import { getMystTemplate } from './template.js';
+import { getSiteTemplate } from './template.js';
 import { collectExportOptions } from '../utils/collectExportOptions.js';
 import { filterPages } from '../../project/load.js';
 import { getRawFrontmatterFromFile } from '../../process/file.js';
@@ -391,7 +391,7 @@ export async function getSiteManifest(
     ?.map((action) => resolveSiteAction(session, action, siteConfigFile, 'actions'))
     .filter((action): action is SiteAction => !!action);
   const siteFrontmatter = filterKeys(siteConfig as Record<string, any>, SITE_FRONTMATTER_KEYS);
-  const mystTemplate = await getMystTemplate(session, opts);
+  const mystTemplate = await getSiteTemplate(session, opts);
   const validatedOptions = mystTemplate.validateOptions(
     siteFrontmatter.options ?? {},
     siteConfigFile,

packages/myst-cli/src/build/site/start.ts

@@ -13,7 +13,7 @@ import type { ISession } from '../../session/types.js';
 import version from '../../version.js';
 import { createServerLogger } from './logger.js';
 import { buildSite } from './prepare.js';
-import { installSiteTemplate, getMystTemplate } from './template.js';
+import { installSiteTemplate, getSiteTemplate } from './template.js';
 import { watchContent } from './watch.js';
 
 const DEFAULT_START_COMMAND = 'npm run start';
@@ -122,7 +122,7 @@ export async function startServer(
   // Ensure we are on the latest version of the configs
   await session.reload();
   warnOnHostEnvironmentVariable(session, opts);
-  const mystTemplate = await getMystTemplate(session, opts);
+  const mystTemplate = await getSiteTemplate(session, opts);
   if (!opts.headless) await installSiteTemplate(session, mystTemplate);
   await buildSite(session, opts);
   const server = await startContentServer(session, opts);

packages/myst-cli/src/build/site/template.ts

@@ -6,12 +6,15 @@ import MystTemplate from 'myst-templates';
 import type { ISession } from '../../session/types.js';
 import { selectors } from '../../store/index.js';
 import { addWarningForFile } from '../../utils/addWarningForFile.js';
+import { castSession } from '../../session/cache.js';
 
 const DEFAULT_TEMPLATE = 'book-theme';
 const DEFAULT_INSTALL_COMMAND = 'npm install';
 
-export async function getMystTemplate(session: ISession, opts?: { defaultTemplate?: string }) {
-  const state = session.store.getState();
+export async function getSiteTemplate(session: ISession, opts?: { defaultTemplate?: string }) {
+  const cache = castSession(session);
+  const state = cache.store.getState();
+  if (cache.$siteTemplate) return cache.$siteTemplate;
   const siteConfig = selectors.selectCurrentSiteConfig(state);
   const file = selectors.selectCurrentSiteFile(state) ?? session.configFiles[0];
   const mystTemplate = new MystTemplate(session, {
@@ -30,6 +33,7 @@ export async function getMystTemplate(session: ISession, opts?: { defaultTemplat
     },
   });
   await mystTemplate.ensureTemplateExistsOnPath();
+  cache.$siteTemplate = mystTemplate;
   return mystTemplate;
 }
 

packages/myst-cli/src/frontmatter.ts

@@ -14,6 +14,8 @@ import { VFile } from 'vfile';
 import type { ISession } from './session/types.js';
 import { selectors, watch } from './store/index.js';
 import { logMessagesFromVFile } from './utils/logging.js';
+import { castSession } from './session/cache.js';
+import type { FileOptions } from 'myst-templates';
 
 export function frontmatterValidationOpts(
   vfile: VFile,
@@ -71,11 +73,26 @@ export function processPageFrontmatter(
   validationOpts: ValidationOptions,
   path?: string,
 ) {
+  const cache = castSession(session);
   const state = session.store.getState();
   const siteFrontmatter = selectors.selectCurrentSiteConfig(state) ?? {};
   const projectFrontmatter = path ? selectors.selectLocalProjectConfig(state, path) ?? {} : {};
 
   const frontmatter = fillPageFrontmatter(pageFrontmatter, projectFrontmatter, validationOpts);
+  const siteTemplate = cache.$siteTemplate;
+  if (siteTemplate) {
+    const siteOptions = siteTemplate.validateOptions(pageFrontmatter.site ?? {}, path, {
+      // The property is different on the page vs the myst.yml
+      property: 'site',
+      // Passing in the log files ensures this isn't prefixed with `myst.yml`.
+      warningLogFn: session.log.warn,
+      errorLogFn: session.log.error,
+    } as ValidationOptions & FileOptions);
+    if (siteOptions && Object.keys(siteOptions).length > 0) frontmatter.site = siteOptions;
+  } else {
+    // The options are still there, they are just not validated
+    session.log.debug(`Site template not available to validate site frontmatter in ${path}`);
+  }
 
   if (siteFrontmatter?.options?.hide_authors || siteFrontmatter?.options?.design?.hide_authors) {
     delete frontmatter.authors;

packages/myst-cli/src/session/types.ts

@@ -9,6 +9,7 @@ import type { Limit } from 'p-limit';
 import type { BuildWarning, RootState } from '../store/index.js';
 import type { PreRendererData, RendererData, SingleCitationRenderer } from '../transforms/types.js';
 import type { SessionManager } from '@jupyterlab/services';
+import type MystTemplate from 'myst-templates';
 
 export type ISession = {
   API_URL: string;
@@ -38,6 +39,7 @@ export type ISessionWithCache = ISession & {
   $internalReferences: Record<string, ReferenceState>; // keyed on path
   $externalReferences: Record<string, ResolvedExternalReference>; // keyed on id
   $mdast: Record<string, { sha256?: string; pre: PreRendererData; post?: RendererData }>; // keyed on path
+  $siteTemplate: MystTemplate;
   $outputs: MinifiedContentCache;
   /** Method to get $mdast value with normalized path */
   $getMdast(

packages/myst-frontmatter/src/page/types.ts

@@ -11,6 +11,7 @@ export const PAGE_FRONTMATTER_KEYS = [
   'jupytext',
   'tags',
   'content_includes_title',
+  'site',
 ];
 
 export type PageFrontmatter = ProjectAndPageFrontmatter & {
@@ -23,4 +24,6 @@ export type PageFrontmatter = ProjectAndPageFrontmatter & {
    * Set during initial file/frontmatter load
    */
   content_includes_title?: boolean;
+  /** Site Options, for example for turning off the outline on a single page */
+  site?: Record<string, any>;
 };

packages/myst-frontmatter/src/page/validators.ts

@@ -5,6 +5,7 @@ import {
   validateObjectKeys,
   validateString,
   validateBoolean,
+  validateObject,
 } from 'simple-validators';
 import { validateProjectAndPageFrontmatterKeys } from '../project/validators.js';
 import { PAGE_FRONTMATTER_KEYS, type PageFrontmatter } from './types.js';
@@ -51,6 +52,11 @@ export function validatePageFrontmatterKeys(value: Record<string, any>, opts: Va
       incrementOptions('content_includes_title', opts),
     );
   }
+  if (defined(value.site)) {
+    // These are validated later based on the siteTemplate
+    // At this point, they just need to be an object
+    output.site = validateObject(value.site, incrementOptions('site', opts));
+  }
   return output;
 }